DS1876
NOT RECOMMENDED FOR NEW DESIGNSSFP Controller with Dual LDD Interface
Industry's First Dual Tx Controller for Video SFP Modules
- Part Models
- 2
- 1ku List Price
- Starting From $3.04
Part Details
- Meets All SFF-8472 Transmitter Control and Monitoring Requirements
- Six Analog Monitor Channels: Temperature, VCC, PMON1, BMON1, PMON2, BMON2
- PMON_ and BMON_ Support Internal and External Calibration
- Scalable Dynamic Range
- Internal Direct-to-Digital Temperature Sensor
- Alarm and Warning Flags for All Monitored Channels
- Six Quick Trips for Fast Monitoring of Critical Functions for Laser Safety
- Four 10-Bit Delta-Sigma Outputs
- Each Controlled by 72-Entry Temperature Lookup Table (LUT)
- Digital I/O Pins: Six Inputs, Five Outputs
- Comprehensive Fault Measurement System with Maskable Laser Shutdown Capability
- Flexible, Two-Level Password Scheme Provides Three Levels of Security
- 256 Additional Bytes Located at A0h Slave Address
- Transmitter 1 Is Accessed at A2h Slave Address
- Transmitter 2 Is Accessed at B2h Slave Address
- I²C-Compatible Interface
- +2.85V to +3.9V Operating Voltage Range
- -40°C to +95°C Operating Temperature Range
- 28-Pin TQFN (5mm x 5mm x 0.8mm) Package
The DS1876 controls and monitors all functions for dual transmitter modules. The memory map is based on SFF-8472. The DS1876 supports APC and modulation control and eye safety functionality for two laser drivers. It continually monitors for high output current, high bias current, and low and high transmit power to ensure that laser shutdown for eye safety requirements are met without adding external components. Six ADC channels monitor VCC, temperature, and four external monitor inputs that can be used to meet all monitoring requirements.
Applications
- Dual Tx Video SFP Modules
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS1876T+ | 28-LFCSP-5X5X0.75 | ||
| DS1876T+T&R | 28-LFCSP-5X5X0.75 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| DS1876T+ | ||
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Fiber Monitoring and Control 1 | ||
| DS1877 | NOT RECOMMENDED FOR NEW DESIGNS | SFP Controller for Dual Rx Interface |
| Fiber Photodiode Current Monitors 1 | ||
| DS1842 | NOT RECOMMENDED FOR NEW DESIGNS | 76V, APD, Bias Output Stage with Current Monitoring |
| Product 2 | ||
| DS1874 | LAST TIME BUY | SFP+ Controller with Digital LDD Interface |
| DS1873 | LAST TIME BUY | SFP+ Controller with Analog LDD Interface |
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